Partially integrable dynamics of hierarchical populations of coupled oscillators

Details Partially integrable dynamics of hierarchical populations of coupled oscillators Partially integrable dynamics of hierarchical populations of coupled oscillators

2008-09-22

arxiv.org/abs/0809.3700v2

Nonlinear Sciences

Adaptation and Self-Organizing Systems

4 pages, 1 figure

Scientific paper

10.1103/PhysRevLett.101.264103

We consider oscillator ensembles consisting of subpopulations of identical units, with a general heterogeneous coupling between subpopulations. Using the Watanabe-Strogatz ansatz we reduce the dynamics of the ensemble to a relatively small number of dynamical variables plus constants of motion. This reduction is independent of the sizes of subpopulations and remains valid in the thermodynamic limits. The theory is applied to the standard Kuramoto model and to the description of two interacting subpopulations, where we report a novel, quasiperiodic chimera state.

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